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Finding the Fourth Proportional to 122,255.58, 168,702.90 and 68,533.29

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Solution

The fourth proportional to 122,255.58, 168,702.90 and 68,533.29 is: 94,570.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,255.58 : 168,702.90 = 68,533.29 : x
  2. Step 2: Convert to fraction form
    122,255.58/168,702.90 = 68,533.29/x
  3. Step 3: Cross multiply
    122,255.58x = 168,702.90 × 68,533.29
  4. Step 4: Simplify right side
    122,255.58x = 11,561,764,898.04
  5. Step 5: Solve for x
    x = 11,561,764,898.04/122,255.58
  6. Step 6: Final answer
    x = 94,570.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.